Rosetta Stone speech engine fails to complete microphone setup

Couldn't comment on the post started two years ago (what's up with that?), so here's a new thread.

In the original post, the querent was unable to get his Logitech microphone working with Rosetta Stone. Someone posted a suggestion for using the Audio MIDI Setup utility to make sure everything was correctly configured, but that didn't seem to solve the problem.

This morning I encountered a similar problem when the setup that had worked fine for the past several weeks suddenly stopped working. See service transcript below.

Long story short, the problem was on Rosetta Stone's server, and there was nothing wrong with the audio configuration or the microphone on my Mac Pro. So while I'm waiting for Rosetta Stone to fix the server problem, I'm continuing to learn Spanish on my iPhone via the mobile app, which appears unaffected by the server issue.

Mathieu T (5/6/2020, 8:27:38 AM): Thank you for contacting Rosetta Stone Enterprise and Education Product Support. My name is Mat. How may I help you today?

Me (5/6/2020, 8:29:57 AM): Hi Mat. After weeks of successful work in Foundations, the microphone setup no longer works. Downloads the Speech Engine 100%, then hangs until user reloads the page or directs the browser elsewhere.

Me (5/6/2020, 8:30:59 AM): Restarted system. Cleared the browser cache, but still misbehaving.

Mathieu T (5/6/2020, 8:31:15 AM): Hello Sean, this issue comes from our server.

Me (5/6/2020, 8:31:35 AM): That's what I thought. Any idea when it will be fixed?

Mathieu T (5/6/2020, 8:31:36 AM): This issue has been reported to us already by many other users.

Mathieu T (5/6/2020, 8:31:56 AM): Our engineers are currently working on it, Sean.

Mathieu T (5/6/2020, 8:32:12 AM): I created a case under your name, so we can notify you when it is be fixed.

Me (5/6/2020, 8:33:03 AM): Excellent -- thank you. I'll keep an eye on my inbox. Have a great Wednesday!

Mathieu T (5/6/2020, 8:33:17 AM): Thank you for understand, Sean.

Mathieu T (5/6/2020, 8:33:28 AM): Have a great Wednesday as well!

Me (5/6/2020, 8:33:30 AM): No problem. Cheers!